Mainly for Mediatek JB AOSP based Roms...............
Here u go:
1. Download and Move Android_L_Icon_Pack_by_Akib.zip to the root of your sdcard.
2. Go to CWM recovery.
3. Install zip and choose Android_L_Icon_Pack_by_Akib.zip and wait, it will automatically reboot.
Download Link : Click Here
Note: I have collected those icons and made this modpack